Yorkville AP4K 2RU Power Amplifier Amplifier,1800W Per Channel

An impedance mode switch on the back panel of the amplifier allows the user to select full output power into either a two or four ohm load for maximum application flexibility. This means this compact two rack space amplifier can deliver up to 3600 watts of clean, pure power into either 4 or 8 ohm loads (bridged), making it a perfect solution for virtually any touring live sound, club system or installation. The internal signal path has been optimized and a toroidal transformer is used in the AP4K design - both serving to reduce hum and noise in practical real-world applications. It's three-tier Class-H design approaches efficiency normally associated with Class-D technology; yet provides the superior transient response and low distortion of the best analog designs.

Key Features

• Delivers 1800 watts per channel into either 2 or 4 ohm load
• (3600 watts bridged into 4 or 8 ohms)
• Proven Ultra Reliable Class-H Design
• Easily Handles Reactive Phase Shifted Loads
• Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection
• Transparent User-Defeatable Peak Limiter Circuits
• Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up
• Concise Front Panel Metering and Status LED's
• Speakon and Binding Post Outputs
• Balanced XLR and -inch TRS Inputs
• All-Steel Chassis Construction

Technical Specifications

Amplifier class
Class-H
Continuous Average Power @ 8 Ohms BCD (Watts)
600 (x2)(2ohm mode)/1000 (x2)(4ohm mode)
Continuous Average Power @ 4 Ohms BCD (Watts)
1000 (x2)(2ohm mode)/1800 (x2)(4ohm mode)
Continuous Average Power @ 2 Ohms BCD (Watts)
1800 (x2) (2ohm mode)/ NA in 4ohm mode
Continuous Average Power Bridged BCD (Watts)
3600 @ 4 ohms /3600 @ 8 ohms
Burst Average Power @ 8 Ohms BCD(Watts)
1000 (x2)(2ohm mode)/1800 (x2)(4ohm mode)
Burst Average Power @ 4 Ohms BCD (Watts)
1800 (x2)(2ohm mode)/3500 (x2)(4ohm mode)
Burst Average Power @ 2 Ohms BCD (Watts)
2500 (x2)(2ohm mode)/ NA
Burst Average Power Bridged BCD (Watts)
5000 @ 4 ohms / 7000 @ 8 ohms
Frequency Response (Hz, +/- 1dB)
20-20,000
Hum and Noise (un / Aweighted -dB)
-100/ -115
THD -1kHz- 4 OHMS
0.01
THD - 20Hz-20kHz, 4 Ohms
less than 0.1%
Slew Rate (V/uS)
25
Slew Rate Bridged (V/uS)
50
Damping Factor (30 Hz - 400 Hz @ 8 Ohms)
600
Crosstalk (1kHz / 20Hz-20kHz)
-75 / -60 dB
Input Impedance - Bal/Unbal (Ohms)
10,000/5,000
Input Sensitivity (Vrms) For Full Power Out
1.0V (2ohm mode) / 1.4V(4ohm mode)
Max Voltage Gain (dB)
36
CMRR @ 60Hz (min/typ)
48/56 dB
Stereo / Bridge (S/B)
S/B
Protection
DC, Load, Thermal
Limiter
Peak
High Pass Filter
50Hz, 18dB Octave
Cooling Internal
Fans
Cooling Path
Front to Rear
Inputs XLR
2
Inputs - 1/4" Jacks
4
Outputs - Speakon 4-pin
2
Outputs - Binding Post
2
Power Consumption (typ/max)
1130/1800 Watts
Rack Spaces
2
Transformer Type
Toroidal
Exterior Finish
Baked, Black Painted
Dimensions (DWH /D fm ears, inches)
16.5 x 17.3 x 3.5 x 14.9
Dimensions (DWH /D fm ears, cm)
41.5 x 43.9 x 8.9 x 37.85
Weight (lbs / kg)
41 / 18.5